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diff --git a/slideshow/source/engine/rehearsetimingsactivity.hxx b/slideshow/source/engine/rehearsetimingsactivity.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_SLIDESHOW_REHEARSETIMINGSACTIVITY_HXX
+#define INCLUDED_SLIDESHOW_REHEARSETIMINGSACTIVITY_HXX
+
+#include "activity.hxx"
+
+#include <basegfx/range/b2drange.hxx>
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/noncopyable.hpp>
+
+#include <vector>
+#include <utility>
+
+class Font;
+namespace canvas{ namespace tools{ class ElapsedTime; }}
+namespace cppcanvas{ class CustomSprite; }
+namespace basegfx
+{
+    class B2IVector;
+    class B2DRange;
+}
+
+namespace slideshow {
+namespace internal {
+
+struct SlideShowContext;
+class EventMultiplexer;
+class ScreenUpdater;
+class RehearseTimingsActivity : public Activity,
+                                public ViewEventHandler,
+                                public boost::enable_shared_from_this<RehearseTimingsActivity>,
+                                private ::boost::noncopyable
+{
+public:
+    /** Creates the activity.
+     */
+    static boost::shared_ptr<RehearseTimingsActivity> create(
+        const SlideShowContext& rContext );
+
+    virtual ~RehearseTimingsActivity();
+
+    /** Starts and shows the timer; adds to activity queue.
+     */
+    void start();
+
+    /** Stops and hides the timer.
+        @return elapsed time
+     */
+    double stop();
+
+    /** Determines whether the timer button has been clicked.
+     */
+    bool hasBeenClicked() const;
+
+    // ViewEventHandler interface
+    virtual void viewAdded( const UnoViewSharedPtr& rView );
+    virtual void viewRemoved( const UnoViewSharedPtr& rView );
+    virtual void viewChanged( const UnoViewSharedPtr& rView );
+    virtual void viewsChanged();
+
+    // Disposable:
+    virtual void dispose();
+    // Activity:
+    virtual double calcTimeLag() const;
+    virtual bool perform();
+    virtual bool isActive() const;
+    virtual void dequeued();
+    virtual void end();
+
+private:
+    class WakeupEvent;
+
+    explicit RehearseTimingsActivity( const SlideShowContext& rContext );
+
+    void paint( ::cppcanvas::CanvasSharedPtr const & canvas ) const;
+    void paintAllSprites() const;
+
+    class MouseHandler;
+    friend class MouseHandler;
+
+    typedef ::std::vector<
+        ::std::pair<UnoViewSharedPtr,
+                    boost::shared_ptr<cppcanvas::CustomSprite> > > ViewsVecT;
+
+    template <typename func_type>
+    void for_each_sprite( func_type const & func ) const
+    {
+        ViewsVecT::const_iterator iPos( maViews.begin() );
+        const ViewsVecT::const_iterator iEnd( maViews.end() );
+        for ( ; iPos != iEnd; ++iPos )
+            func( iPos->second );
+    }
+
+    ::basegfx::B2DRange calcSpriteRectangle(
+        UnoViewSharedPtr const & rView ) const;
+
+    EventQueue&                     mrEventQueue;
+    ScreenUpdater&                  mrScreenUpdater;
+    EventMultiplexer&               mrEventMultiplexer;
+    ActivitiesQueue&                mrActivitiesQueue;
+    canvas::tools::ElapsedTime      maElapsedTime;
+
+    ViewsVecT                       maViews;
+
+    /// screen rect of sprite (in view coordinates!)
+    ::basegfx::B2DRange             maSpriteRectangle;
+
+    Font                            maFont;
+    boost::shared_ptr<WakeupEvent>  mpWakeUpEvent;
+    boost::shared_ptr<MouseHandler> mpMouseHandler;
+    ::basegfx::B2IVector            maSpriteSizePixel;
+    sal_Int32                       mnYOffset;
+    bool                            mbActive;
+    bool                            mbDrawPressed;
+};
+
+} // namespace internal
+} // namespace presentation
+
+#endif /* INCLUDED_SLIDESHOW_REHEARSETIMINGSACTIVITY_HXX */